| 摘要 |
<p>Method for the manufacture of metal granules, in which a metal source (14) is placed in a vacuum chamber (1). A process anode (17) and a means for initiating discharge from the metal source are provided in the chamber. An electric discharge is generated between the discharge initiation means and the metal source as the cathode, in order to raise the surface temperature of the metal source above its boiling point and to generate metal vapor and metallic plasma. A flow of current is generated between the process anode and the metal source through the metallic plasma, whereby to continue to generate metal vapor from the cathode. The vapor is allowed to condense into spherical molten drops and the molten drops to solidify to spherical particles, which are then withdrawn from the vacuum chamber.</p> |
